Fetal growth, birth weight specific mortality rates and effect of sick leave or hospitalization on the fetal growth were investigated in a material of 476 twin pregnancies managed at University Central Hospital of Turku in years 1970-81. Birth weights of twin babies at any gestational age were slightly but not significantly higher than in earlier materials. When compared to growth curve of singleton fetuses, the growth rate of both twins is equal to singletons up to 30th week of pregnancy, being thereafter slower than in singleton pregnancies. Although duration of sick leave and hospitalization increased considerably during the study period, no change in the duration of pregnancy nor in the weight of twin babies occurred. Instead perinatal mortality decreased from 101/per thousand to 36.2/per thousand. Birth weight specific mortality rates did not differ from those in singleton fetuses.

译文

在图尔库大学中央医院1970-81年管理的476例双胎妊娠材料中,研究了胎儿生长,出生体重特定死亡率以及病假或住院对胎儿生长的影响。在任何胎龄的双胞胎婴儿的出生体重均略高于但不显着高于早期材料。与单胎胎儿的生长曲线相比,两个双胞胎的生长速度等于怀孕第30周的单胎,此后比单胎妊娠慢。尽管在研究期间病假和住院时间大大增加,但怀孕时间和双胞胎婴儿的体重没有变化。相反,围产期死亡率从101/每千下降到36.2/每千。出生体重特定死亡率与单胎胎儿没有差异。

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